Set of 20 Titanium Retainers
These are a direct replacement for the original steel retainers on the 1998-2003 Yamaha YZF R1.
 
12 x Intake + 8 x Exhaust
 
Made of best grade Titanium - Grade 5.
 
The original intake retainers weight 5.0g and the titanium retainers weight 2,6g, 48% lighter.

The original exhaust retainers weight 6.0g and the titanium retainers weight 3,8g, 37% lighter.

These retainers have a smaller profile/height (0,5mm shorter) to allow for more valve lift without contact with oil seal and without requiring valve guide modifications.

Using lightweight titanium retainers allows for more aggressive camshaft profiles (lift and duration) without losing control of the valve and increased rpm limits - a must for any performance / race engine.